If you’re a homeowner in the UK, the Boiler Upgrade Scheme could save you thousands on a new low-carbon heating system. Launched to support the transition to greener energy, this government-backed initiative helps cover the cost of heat pumps and biomass boilers. It works alongside providers like Eco Green Grant, ensuring that eligible property owners get access to the support they need. Whether you’re replacing a fossil fuel boiler or upgrading for efficiency, this scheme is worth exploring.
Boiler Upgrade Scheme Overview
How the Boiler Upgrade Scheme Works Step-by-Step
🔍 Discover the Scheme
Homeowners learn about the grant that supports low-carbon heating upgrades across the UK.
✅ Check Eligibility
Applicants must own their home and have a current EPC with no outstanding insulation recommendations.
🛠️ Choose a System
Homeowners can install air source heat pumps, ground source pumps, or biomass boilers.
📋 Grant Application
Your installer applies on your behalf. The grant—up to £7,500—is deducted from the installation cost.
🏠 Installation Complete
Your new system is professionally installed and verified—improving comfort and reducing carbon output.
The Boiler Upgrade Scheme is a UK government program offering upfront capital grants for low-carbon heating. It supports installations like heat pumps and biomass boilers across England and Wales. Managed by Ofgem, this scheme helps reduce the financial burden of upgrading old systems. Thousands of homes have already benefited since its launch in 2022.
What Is the Boiler Upgrade Scheme?
The Boiler Upgrade Scheme (BUS) provides upfront grants of up to £7,500 for eligible homeowners. It’s designed to help cover the cost of switching from fossil fuel boilers to more sustainable options like air source or ground source heat pumps. Boiler Upgrade Grants like this encourage the use of low carbon heating systems in homes and small non-domestic buildings. Ofgem oversees the scheme, and it’s part of the UK’s wider plan to decarbonise heating. Installers play a key role in guiding homeowners through the process.
When Was It Launched and Why?
Launched in 2022, the Boiler Upgrade Scheme is a vital part of the UK’s 10-point plan for a green industrial revolution. It aims to reduce carbon emissions by replacing outdated fossil fuel heating systems. With domestic heating responsible for around 20% of UK emissions, this shift is crucial. The government announced this scheme as a way to accelerate low carbon adoption. It also supports households in saving money long term.
What Technologies Are Covered?
The scheme supports air source heat pumps, ground source heat pumps, and biomass boilers. It does not cover new builds unless they are self-built homes. Each installation must be completed by an MCS-certified installer to qualify. The Boiler Upgrade Scheme grant applies only to homes in England and Wales. These renewable systems significantly cut your carbon footprint and energy bills.
Who Is Eligible for the Boiler Upgrade Scheme?
Key Eligibility Criteria You Must Meet
🏡 Homeowner in England or Wales
You must own the property you’re applying for—tenants and housing associations are not eligible under BUS.
📄 Valid EPC Certificate
Your property must have a valid EPC (Energy Performance Certificate) with no recent insulation recommendations.
🔥 Existing Fossil Fuel Boiler
You must currently heat your home using oil, gas, coal, or electric—first-time installs may also qualify.
🚫 Not a New Build
Your home must not be a new-build unless you are self-building and acting as your own developer.
🔧 Installer Required
You must apply through a certified installer—they will handle the application and install the system.
💷 Property Value
There is currently no strict cap, but property type and heating demand may affect grant amounts and approval.
Before applying, it’s essential to understand if your property and circumstances meet the Boiler Upgrade Scheme eligibility criteria. This ensures only the right homes receive funding. The scheme is not available for all property types. Below are the core rules explained simply.
Eligibility Criteria for Homeowners
To qualify, you must be a property owner in England or Wales and have an existing fossil fuel boiler or heating system. Your home must have a valid Energy Performance Certificate (EPC) with no recommendations for cavity wall insulation or loft insulation. The building’s installation capacity should not exceed 45kWth. Social housing tenants and landlords are not currently eligible.
Suitable Property Types
The scheme applies to existing homes and non-domestic buildings only—not standard new builds. However, self-build homes are eligible if a copy of the title deeds is provided. Buildings must be located in England or Wales, connected or off the gas grid. It’s also essential that no other Government Grants for Homeowners have already been given for the same upgrade.
Eligible Heating Systems
You must be replacing an existing fossil fuel heating system, like a gas or oil boiler, to qualify. The new system must be a low-carbon heating system—either a heat pump or biomass boiler. These systems must be installed and commissioned by an MCS certified installer within 120 days of voucher issuance. This ensures quality and compliance with scheme standards.
Types of Upgrades Covered
What Improvements Can You Expect Under the Scheme?
🔥 New Boilers
Efficient A-rated gas boilers for better performance, lower emissions, and energy savings.
🌡 Loft Insulation
Prevents up to 25% heat loss and improves indoor warmth in colder months.
🏠 Wall Insulation
Cavity or solid wall insulation to drastically cut energy waste and improve EPC rating.
🌬 Air Source Heat Pumps
Low-carbon heating system extracting warmth from outdoor air, funded under Boiler Upgrade Scheme.
🔥 Biomass Boilers
Eco-friendly heating using organic materials—ideal for off-grid rural homes.
💨 Ventilation Improvements
Ensures airflow with insulation upgrades to avoid damp and mold issues.
📊 Smart Controls
Thermostats and timers that optimize usage—saving money and reducing carbon footprint.
The Boiler Upgrade Scheme focuses on environmentally friendly heating solutions that reduce carbon emissions. Here’s a closer look at what’s included under the scheme.
Air Source Heat Pumps
Air source heat pumps extract warmth from the outside air—even in winter—and convert it into usable heat. They work efficiently down to sub-zero temperatures. These systems are cheaper to run than traditional boilers and eligible for a Boiler Upgrade Scheme grant. It’s ideal for properties with good insulation and low heating demand. They help lower energy costs over time.
Ground Source Heat Pumps
Ground source heat pumps take heat from underground using looped piping. Though installation is more complex and requires outdoor space, these systems are extremely efficient. The Boiler Upgrade Scheme covers part of the upfront cost, making Heat Pump Grants more accessible. Ground source pumps are ideal for rural homes or off-grid properties. They deliver steady heating year-round.
Biomass Boilers
Biomass boilers use organic materials like wood pellets to produce heat. They’re especially useful in properties where heat pumps aren’t suitable. However, biomass systems are only eligible if the property is off the gas grid and in rural locations. The scheme supports them as part of its renewable energy goals. Regular maintenance is required, but long-term savings are substantial.
How to Apply for the Boiler Upgrade
Step-by-Step Process for Accessing Your Grant
🔍 1. Check Eligibility
Make sure you own your property, have a valid EPC, and use fossil fuel heating like gas, oil, or electric.
📞 2. Contact a Certified Installer
Choose a registered installer who will handle the application and installation process on your behalf.
📄 3. Submit Application
Your installer applies through Ofgem’s system to reserve a grant of up to £7,500 for eligible systems.
🛠️ 4. System Installation
The installer fits the new low-carbon heating system, such as a heat pump or biomass boiler.
✅ 5. Grant Claimed
Once the install is verified, the installer is paid the grant amount, reducing your out-of-pocket costs.
If you meet the criteria, the next step is to apply for the Boiler Upgrade. It’s a simple process handled mostly by your installer.
Step-by-Step Application Process
Your installer starts the process on your behalf. First, they apply for a grant voucher through Ofgem. You’ll then receive an email to confirm your consent. After installation, the installer redeems the voucher within 120 days. The grant is paid directly to them, reducing your upfront cost. You only pay the balance after the discount is applied.
Documents You’ll Need
You’ll need a valid EPC, proof of property ownership (e.g., copy of the title deeds), and consent for installation. If it’s a self-build, you may also need planning approval documents. The installer handles most of the admin but will ask for your approval. This Insulation Grant Approval Process ensures compliance with Ofgem and MCS requirements.
Finding an MCS Certified Installer
To qualify, installation must be done by an MCS certified installer. You can find an MCS certified installer in your area through the official MCS register. This guarantees the work meets industry standards and the scheme’s eligibility rules. Choosing the right installer ensures you get the best value from the upgrade.
Understanding Costs and Grant Value
What Does the Grant Cover vs What You Pay?
🎯 Government Grant Covers
- ✔️ Up to £7,500 for heat pump installation
- ✔️ Up to £5,000 for biomass boilers
- ✔️ Installation labor & equipment
- ✔️ VAT-inclusive support
- ✔️ Installer claims on your behalf
💷 What Homeowners Typically Pay
- 💡 Remaining balance after grant
- 💡 Optional extras or system upgrades
- 💡 Annual servicing (after year one)
- 💡 Minor electrical or plumbing work (if needed)
- 💡 Any EPC upgrades before eligibility
📝 Tip: Some installations may be fully covered depending on system type, installer offers, and existing efficiency level.
The Boiler Upgrade Scheme helps reduce the cost of switching to low carbon heating—but how much does it actually cover?
How Much Could You Get?
The scheme offers fixed grants: £7,500 for air source heat pumps and ground source heat pumps, and £5,000 for biomass boilers. This significantly reduces the total upfront cost of your installation. While not covering 100%, it offsets the largest expense. The rest is paid by the property owner. In most cases, total costs are reduced by 40–50%.
Additional Costs to Consider
Even with the grant, you may need to upgrade your heating system or Save Energy With Insulation improvements. Costs vary by property size and system type. You might also pay for plumbing changes or cylinder installation. Get multiple quotes from certified installers. Also, budget for ongoing maintenance—especially if you choose biomass systems.
Are There Any Other Supports?
While the Boiler Upgrade Scheme is generous, other support options may be available. These include separate funding for energy improvements or local council grants. You may also combine this scheme with solar PV or cavity wall insulation for more savings. Always check with your installer or local authority.
Key Benefits of the Scheme
Why Homeowners Are Applying Across the UK
💷 Financial Support
Grants up to £7,500 help cover major energy upgrades with minimal upfront cost.
📉 Lower Energy Bills
Insulation and heating upgrades reduce monthly energy usage and long-term costs.
🌍 Eco-Friendly Living
Supports net-zero goals by promoting low-carbon heating systems and better insulation.
🏠 Increased Comfort
Improved insulation keeps your home warmer in winter and cooler in summer.
📈 Property Value Boost
Energy-efficient upgrades can improve your EPC rating and boost resale value.
⚡ Modern Heating Options
Air source heat pumps and biomass boilers provide reliable and sustainable warmth.
Beyond the grant money, the scheme brings several long-term advantages for homeowners and the environment.
Lower Energy Bills
Switching to a low carbon heating system like a heat pump can cut your monthly energy bills. These systems are far more efficient than gas boilers, especially when combined with smart thermostats. Over time, the savings often outweigh the installation costs. With energy prices rising, Energy Saving Upgrades are a smart long-term move.
Reducing Your Carbon Footprint
The UK government introduced this scheme to support the decarbonisation of homes. A new heat pump or biomass boiler can reduce your carbon emissions by up to 70%. Every upgrade helps the UK meet its Net Zero targets. It’s a meaningful step toward sustainable living.
Boosting Property Value
Installing a renewable heating system can improve your home’s energy efficient rating. Homes with better EPC scores tend to sell faster and for more. Buyers are looking for eco-friendly, future-proof homes. These systems add both comfort and long-term value.
Important Deadlines and Scheme Timeline
“Thanks to Eco Green Grant, we were able to upgrade our heating system without spending thousands upfront. The team handled everything, and our home feels warmer and more efficient already.”
— Sarah M., Homeowner in Manchester
Stay informed about key dates so you don’t miss out on funding opportunities.
Key Deadlines to Know
As of May 2024, the scheme has been extended with additional funding. All installations must be completed and commissioned within 120 days of the voucher being issued. Missing this window could invalidate your grant. Always coordinate with your installer to meet deadlines.
Program Duration and End Date
The Boiler Upgrade Scheme is set to run until 2025, but future extensions are possible. Keep an eye on government announcements. The scheme’s success could lead to more funding in future phases. Demand is high, so early application is recommended.
Government Changes and Updates
The scheme has evolved since 2022, with increased grant values and simplified processes. Changes are usually announced through Ofgem or government press releases. Stay updated through official channels or consult with your installer. Always verify that your project meets the latest criteria.
Guidance for Property Owners and Final Tips
“I didn’t even know I was eligible until I checked online. Within weeks, I had brand new loft insulation and a much lower energy bill. Highly recommend applying!”
— James R., Eco4 Grant Recipient
Ready to start your upgrade journey? Here’s some final advice for making the most of the scheme.
Work with Trusted Professionals
Always choose a reputable and certified installer in your area. Ask for references and look at past projects. Working with professionals ensures compliance and smooth application. Avoid cutting corners—it could affect your eligibility.
Maximise Your Property’s Suitability
Ensure your home is suitable for your property upgrade. Insulation, window quality, and heating system layout all impact efficiency. An MCS installer can recommend adjustments. Optimising your home helps the new system perform at its best.
Plan for the Future
Think long-term when choosing between air source, ground source, or biomass boilers. Consider energy prices, maintenance needs, and your property’s layout. This isn’t just a one-time grant—it’s a lifestyle and energy commitment.
FAQS
What is the Boiler Upgrade Scheme?
The Boiler Upgrade Scheme is a UK government grant that helps homeowners switch from fossil fuel boilers to low carbon systems like heat pumps or biomass boilers. It offers upfront capital grants to reduce installation costs. The scheme supports energy efficiency and decarbonisation across England and Wales.
Who is eligible for the Boiler Upgrade Scheme?
To be eligible for the Boiler Upgrade Scheme, you must be a property owner in England or Wales with an existing fossil fuel heating system. Your property must meet energy efficiency standards. New builds are excluded unless self-built with proof of ownership like title deeds.
What heating systems are covered by the scheme?
The scheme supports air source heat pumps, ground source heat pumps, and biomass boilers. These low carbon heating systems are more energy efficient than gas boilers. Each must be installed by an MCS certified installer to qualify for the government grant.
How much grant money can I receive?
You could get a Boiler Upgrade Scheme grant of £7,500 for heat pumps and £5,000 for biomass boilers. The grant is paid directly to the installer, reducing your upfront costs. This support makes switching to renewable heating more affordable for homeowners.
How do I apply for the Boiler Upgrade Scheme?
To apply for the Boiler Upgrade, contact an MCS certified installer who will apply on your behalf. You’ll confirm consent through an Ofgem email. Once installed, the installer redeems the voucher and the grant is deducted from your total bill.
What is the role of Ofgem in the scheme?
Ofgem administers the Boiler Upgrade Scheme by issuing vouchers and monitoring compliance. They ensure funding is properly allocated and only eligible properties benefit. Installers submit all documentation to Ofgem within 120 days of installation for reimbursement.
Is the scheme available in Northern Ireland or Scotland?
No, the Boiler Upgrade Scheme currently only covers buildings in England and Wales. If you live in Scotland or Northern Ireland, different government funding or support options may be available. Always check your regional eligibility and local schemes.
What are biomass boilers, and are they eligible?
Biomass boilers use organic materials like wood pellets to provide heating. They are eligible under the Boiler Upgrade Scheme if the property is in a rural location and not connected to the gas grid. Biomass is a renewable alternative for hard-to-heat homes.
Can I combine this scheme with other grants?
The Boiler Upgrade Scheme cannot be used if you’ve already received government funding or support for the same upgrade. However, you may still access other programs for insulation, solar PV, or energy advice. Consult your installer for the best funding strategy.
When does the Boiler Upgrade Scheme end?
The scheme is currently running through 2025, with funding available while supplies last. Deadlines are strict—vouchers must be redeemed within 120 days. Applying early ensures you don’t miss out as demand for low carbon heating continues to rise.
